The International Cricket Council has provisionally suspended Pakistan leg-spinner Yasir Shah for a positive drug test.

The ICC says in a statement on Sunday that a sample provided by Shah on Nov. 13, when Pakistan played an ODI against England in the United Arab Emirates, contained chlortalidone, which is on the World Anti-Doping Authority’s list of prohibited substances.

Shah could challenge the suspension and apply for the test of his B sample within seven days.

The 29-year-old Shah has taken 76 wickets in 12 Test matches and 18 wickets in 15 one-day internationals.